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Tamil Nadu Board of Secondary EducationHSC Science कक्षा ११

HSC Science कक्षा ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions

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Explain artificial seasoning.

[10] Secondary Growth
Chapter: [10] Secondary Growth
Concept: undefined >> undefined

These questions consist of two statements each printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses.

Assertion: In woody stems the amount of heart wood continue to increase year after Year

Reason: The activity of cambial ring continues uninterrupted

[10] Secondary Growth
Chapter: [10] Secondary Growth
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Differentiate the wood formed in Pinus from that of Morus.

[10] Secondary Growth
Chapter: [10] Secondary Growth
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Central part of the wood is always dark. Why?

[10] Secondary Growth
Chapter: [10] Secondary Growth
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A cross section of tree trunk contains 60 lighter and 60 darker rings. Determine the age of the tree and justify

[10] Secondary Growth
Chapter: [10] Secondary Growth
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Differentiate homoiomerous and heteromerous lichens.

[1] Living World
Chapter: [1] Living World
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Give a general account on lichens.

[1] Living World
Chapter: [1] Living World
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Which of following represents gametophytic generation in pteridophytes?

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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What is plectostele? give example.

[2] Plant Kingdom
Chapter: [2] Plant Kingdom
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Roots are 

[3] Vegetative Morphology
Chapter: [3] Vegetative Morphology
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How root climbers differ from stem climbers?

[3] Vegetative Morphology
Chapter: [3] Vegetative Morphology
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Gynoecium with united carples is termed as ______.

[4] Reproductive Morphology
Chapter: [4] Reproductive Morphology
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Explain the different types of placentation with example.

[4] Reproductive Morphology
Chapter: [4] Reproductive Morphology
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Explain the asexual reproduction in Rhizopus.

[1] Living World
Chapter: [1] Living World
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Mention the steps involved in the sexual reproduction of Rhizopus.

[1] Living World
Chapter: [1] Living World
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Write outline the life cycle of Agaricus.

[1] Living World
Chapter: [1] Living World
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What is Sterigma?

[1] Living World
Chapter: [1] Living World
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Name the types of mycelium found in Agaricus.

[1] Living World
Chapter: [1] Living World
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Differentiate oidium and Chlamydospore.

[1] Living World
Chapter: [1] Living World
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Name the fungal group which possess dolipore septum.

[1] Living World
Chapter: [1] Living World
Concept: undefined >> undefined
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